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Vulnerability · Published Feb 14, 2023 · Assigned by GitHub_M

CVE-2023-23946Git's `git apply` overwriting paths outside the working tree

Medium 6.2

In plain English

A medium-severity path traversal in git from git. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 67% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.2Medium
Exploit odds (30 days)1.1%top 33.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack tooling1Public PoC

Official description

Git, a revision control system, is vulnerable to path traversal prior to versions 2.39.2, 2.38.4, 2.37.6, 2.36.5, 2.35.7, 2.34.7, 2.33.7, 2.32.6, 2.31.7, and 2.30.8. By feeding a crafted input to `git apply`, a path outside the working tree can be overwritten as the user who is running `git apply`. A fix has been prepared and will appear in v2.39.2, v2.38.4, v2.37.6, v2.36.5, v2.35.7, v2.34.7, v2.33.7, v2.32.6, v2.31.7, and v2.30.8. As a workaround, use `git apply --stat` to inspect a patch before applying; avoid applying one that creates a symbolic link and then creates a file beyond the symbolic link.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8git2.39.3-1.el8_8ALSA-2023:3246
AlmaLinux:9git2.39.3-1.el9_2ALSA-2023:3245
AlmaLinux:8git-all2.39.3-1.el8_8ALSA-2023:3246
AlmaLinux:9git-all2.39.3-1.el9_2ALSA-2023:3245
AlmaLinux:8git-core2.39.3-1.el8_8ALSA-2023:3246
AlmaLinux:9git-core2.39.3-1.el9_2ALSA-2023:3245
AlmaLinux:8git-core-doc2.39.3-1.el8_8ALSA-2023:3246
AlmaLinux:9git-core-doc2.39.3-1.el9_2ALSA-2023:3245
AlmaLinux:8git-credential-libsecret2.39.3-1.el8_8ALSA-2023:3246
AlmaLinux:9git-credential-libsecret2.39.3-1.el9_2ALSA-2023:3245
AlmaLinux:8git-daemon2.39.3-1.el8_8ALSA-2023:3246
AlmaLinux:9git-daemon2.39.3-1.el9_2ALSA-2023:3245
AlmaLinux:8git-email2.39.3-1.el8_8ALSA-2023:3246
AlmaLinux:9git-email2.39.3-1.el9_2ALSA-2023:3245
AlmaLinux:8git-gui2.39.3-1.el8_8ALSA-2023:3246
AlmaLinux:9git-gui2.39.3-1.el9_2ALSA-2023:3245
AlmaLinux:8git-instaweb2.39.3-1.el8_8ALSA-2023:3246
AlmaLinux:9git-instaweb2.39.3-1.el9_2ALSA-2023:3245
AlmaLinux:8git-subtree2.39.3-1.el8_8ALSA-2023:3246
AlmaLinux:9git-subtree2.39.3-1.el9_2ALSA-2023:3245
AlmaLinux:8git-svn2.39.3-1.el8_8ALSA-2023:3246
AlmaLinux:9git-svn2.39.3-1.el9_2ALSA-2023:3245
AlmaLinux:8gitk2.39.3-1.el8_8ALSA-2023:3246
AlmaLinux:9gitk2.39.3-1.el9_2ALSA-2023:3245
AlmaLinux:8gitweb2.39.3-1.el8_8ALSA-2023:3246
AlmaLinux:9gitweb2.39.3-1.el9_2ALSA-2023:3245
AlmaLinux:8perl-Git2.39.3-1.el8_8ALSA-2023:3246
AlmaLinux:9perl-Git2.39.3-1.el9_2ALSA-2023:3245
AlmaLinux:8perl-Git-SVN2.39.3-1.el8_8ALSA-2023:3246
AlmaLinux:9perl-Git-SVN2.39.3-1.el9_2ALSA-2023:3245
Alpine:v3.20git2.39.2-r0ALPINE-CVE-2023-23946
Alpine:v3.21git2.39.2-r0ALPINE-CVE-2023-23946
Alpine:v3.22git2.39.2-r0ALPINE-CVE-2023-23946
Alpine:v3.23git2.39.2-r0ALPINE-CVE-2023-23946
Alpine:v3.24git2.39.2-r0ALPINE-CVE-2023-23946
Debian:12git1:2.39.2-1DEBIAN-CVE-2023-23946
Debian:13git1:2.39.2-1DEBIAN-CVE-2023-23946
Debian:14git1:2.39.2-1DEBIAN-CVE-2023-23946
Rocky Linux:8git0:2.39.3-1.el8_8RLSA-2023:3246
Ubuntu:22.04:LTSgit1:2.34.1-1ubuntu1.8UBUNTU-CVE-2023-23946
Ubuntu:22.04:LTSgit1:2.34.1-1ubuntu1.8USN-5871-1

Affected products (as reported)

VendorProductVersions
git git >= 2.39.0, < 2.39.2>= 2.38.0, < 2.38.4>= 2.37.0, < 2.37.6>= 2.36.0, < 2.36.5>= 2.35.0, < 2.35.7>= 2.34.0, < 2.34.7>= 2.33.0, < 2.33.7>= 2.32.0, < 2.32.6

Weakness: CWE-22 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

References